224945 has 8 divisors (see below), whose sum is σ = 308544. Its totient is φ = 154224.

The previous prime is 224929. The next prime is 224947. The reversal of 224945 is 549422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 224945 - 2⁴ = 224929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3179 + ... + 3248.

It is an arithmetic number, because the mean of its divisors is an integer number (38568).

2²²⁴⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

224945 is a deficient number, since it is larger than the sum of its proper divisors (83599).

224945 is an equidigital number, since it uses as much as digits as its factorization.

224945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439.

The product of its digits is 2880, while the sum is 26.

The square root of 224945 is about 474.2836703915. The cubic root of 224945 is about 60.8170636836.

The spelling of 224945 in words is "two hundred twenty-four thousand, nine hundred forty-five".